Crossfade Audio Online
Blend audio tracks together with smooth crossfade transitions. Adjustable duration, per-track volume.
What Is a Crossfade?
A crossfade is a smooth transition where one audio track fades out while the next fades in, overlapping for a set duration. Instead of an abrupt cut, you get a seamless blend. Crossfades are used everywhere: between songs in a DJ mix, between scenes in a film soundtrack, between segments in a podcast, and between tracks in any audio compilation.
How to Crossfade in cut.audio
1. Open the Audio Joiner 2. Load two or more audio files 3. Set the crossfade duration for each transition 4. Preview the transition 5. Export Crossfade duration options: • 0s = no crossfade (hard cut) • 0.5-1s = subtle, barely noticeable • 2-3s = standard, smooth • 5-10s = dramatic, gradual blend
When to Use What Duration
Short (0.5-1s): Speech, podcasts, audiobooks. Long crossfades on speech sound unnatural. Medium (2-3s): General purpose. Works for most music transitions and compilations. Long (5-10s): Music medleys, ambient soundscapes, DJ-style mixing. Creates a flowing, continuous feel. None (0s): When tracks are already designed to connect — like a podcast intro that fades out on its own.
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Open Audio JoinerFrequently Asked Questions
Yes. Each transition between tracks can have its own crossfade duration. This lets you mix hard cuts and smooth blends in the same project.
Yes. The total duration is shorter than the sum of all tracks because the crossfade regions overlap. A 3-second crossfade between two tracks removes 3 seconds from the total length.